feat: add WebRTC streaming via str0m + portal session persistence

- Add src/webrtc.rs: HTTP signaling server + str0m Sans-IO WebRTC transport
  with H.264 Annex-B → RTP packetization and key-frame request handling
- avhw: introduce FrameOutput enum (Muxer | Channel) so SwEncState can
  output to either MP4 muxer or crossbeam channel for WebRTC
- cap_portal: support portal session restore tokens (PersistMode::ExplicitlyRevoked)
  to skip re-authorization dialog; add --no-persist flag to force fresh dialog
- args: make --output optional when --port is used for WebRTC mode
- state_portal: integrate WebRTC pipeline (encoder channel → RTP forwarding)
  with shorter GOP for WebRTC (fps/2, min 10)
- main: redirect tracing to stderr; validate --output or --port required
- Add dependencies: str0m 0.20, serde_json 1, dirs 6

This commit is contained in:

dailz

2026-06-04 20:54:16 +08:00

parent 74f4dc826d

commit b0ed6548a6

10 changed files with 1611 additions and 70 deletions

									
										src/lib.rs
									
		+1
		
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				@@ -7,3 +7,4 @@ pub mod fps_limit;

				pub mod state;

				pub mod state_portal;

				pub mod transform;

				pub mod webrtc;